201339280

素因数分解:

$2^4\times 5^1\times {\mathrm{1259}}^1\times {\mathrm{1999}}^1$

素因数の和:3271

約数の個数: 40

約数和(自身を含む): 468720000

約数和(自身を除く): 267380720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1259, 1999, 2518, 3998, 5036, 6295, 7996, 9995, 10072, 12590, 15992, 19990, 20144, 25180, 31984, 39980, 50360, 79960, 100720, 159920, 2516741, 5033482, 10066964, 12583705, 20133928, 25167410, 40267856, 50334820, 100669640, 201339280]

約数ペア:

[(1, 201339280), (2, 100669640), (4, 50334820), (5, 40267856), (8, 25167410), (10, 20133928), (16, 12583705), (20, 10066964), (40, 5033482), (80, 2516741), (1259, 159920), (1999, 100720), (2518, 79960), (3998, 50360), (5036, 39980), (6295, 31984), (7996, 25180), (9995, 20144), (10072, 19990), (12590, 15992)]